Datasheet

© 2009 Microchip Technology Inc. DS39755C-page 3
PIC18F2423/2523/4423/4523
Power Management Features:
• Run: CPU on, Peripherals on
• Idle: CPU off, Peripherals on
• Sleep: CPU off, Peripherals off
• Ultra Low 50 nA Input Leakage
• Run mode Currents Down to 11 μA Typical
• Idle mode Currents Down to 2.5 μA Typical
• Sleep mode Current Down to 100 μA Typical
• Timer1 Oscillator: 900 nA, 32 kHz, 2V
• Watchdog Timer: 1.4 μA, 2V Typical
• Two-Speed Oscillator Start-up
Flexible Oscillator Structure:
• Four Crystal modes, up to 40 MHz
• 4x Phase Lock Loop (PLL) – Available for Crystal
and Internal Oscillators
• Two External RC modes, up to 4 MHz
• Two External Clock modes, up to 40 MHz
• Internal Oscillator Block:
- Fast wake from Sleep and Idle, 1 μs typical
- 8 user-selectable frequencies, from 31 kHz to 8 MHz
- Provides a complete range of clock speeds,
from 31 kHz to 32 MHz, when used with PLL
- User-tunable to Compensate for Frequency Drift
• Secondary Oscillator using Timer1 @ 32 kHz
• Fail-Safe Clock Monitor:
- Allows for safe shutdown if peripheral clock stops
Peripheral Highlights:
• 12-Bit, Up to 13-Channel Analog-to-Digital Converter
module (A/D):
- Auto-acquisition capability
- Conversion available during Sleep mode
• Dual Analog Comparators with Input Multiplexing
• High-Current Sink/Source 25 mA/25 mA
• Three Programmable External Interrupts
• Four Input Change Interrupts
• Up to Two Capture/Compare/PWM (CCP)
modules, One with Auto-Shutdown (28-pin devices)
• Enhanced Capture/Compare/PWM (ECCP) module
(40/44-pin devices only):
- One, two or four PWM outputs
- Selectable polarity
- Programmable dead time
- Auto-shutdown and auto-restart
Peripheral Highlights (Continued):
• Master Synchronous Serial Port (MSSP) module
Supporting 3-Wire SPI (all four modes) and I
2
C™
Master and Slave modes
• Enhanced USART module:
- Support for RS-485, RS-232 and LIN/J2602
- RS-232 operation using internal oscillator
block (no external crystal required)
- Auto-wake-up on Start bit
- Auto-Baud Detect (ABD)
Special Microcontroller Features:
• C Compiler Optimized Architecture: Optional
Extended Instruction Set Designed to Optimize
Re-Entrant Code
• 100,000 Erase/Write Cycle, Enhanced Flash
Program Memory Typical
• 1,000,000 Erase/Write Cycle, Data EEPROM
Memory Typical
• Flash/Data EEPROM Retention: 100 Years Typical
• Self-Programmable under Software Control
• Priority Levels for Interrupts
• 8 x 8 Single-Cycle Hardware Multiplier
• Extended Watchdog Timer (WDT): Programmable
Period, from 4 ms to 131s
• Single-Supply In-Circuit Serial Programming™
(ICSP™) via Two Pins
• In-Circuit Debug (ICD) via Two Pins
• Operating Voltage Range: 2.0V to 5.5V
• Programmable, 16-Level High/Low-Voltage
Detection (HLVD) module: Supports Interrupt on
High/Low-Voltage Detection
• Programmable Brown-out Reset (BOR): With
Software-Enable Option
Note: This document is supplemented by the
“PIC18F2420/2520/4420/4520 Data Sheet”
(DS39631). See Section 1.0 “Device
Overview”.
Device
Program Memory Data Memory
I/O
12-Bit
A/D (ch)
CCP/
ECCP
(PWM)
MSSP
EUSART
Comp.
Timers
8/16-Bit
Flash
(bytes)
# Single-Word
Instructions
SRAM
(bytes)
EEPROM
(bytes)
SPI
Master
I
2
C™
PIC18F2423 16K 8192 768 256 25 10 2/0 Y Y 1 2 1/3
PIC18F2523 32K 16384 1536 256 25 10 2/0 Y Y 1 2 1/3
PIC18F4423 16K 8192 768 256 36 13 1/1 Y Y 1 2 1/3
PIC18F4523 32K 16384 1536 256 36 13 1/1 Y Y 1 2 1/3
28/40/44-Pin, Enhanced Flash Microcontrollers with
12-Bit A/D and nanoWatt Technology